/// <summary>
/// Try to get a copy of the system by ID. sessions
/// </summary>
private bool TryGetScadaInstance(long sessionID, out ScadaInstance scadaInstance)
{
if (TryGetSession(sessionID, out var session))
{
scadaInstance = session.LoggedOn ? session.ScadaInstance : null;
if (scadaInstance == null)
{
Log.WriteError(string.Format(
Localization.UseRussian
? "Экземпляр системы не определён для сессии с ид. {0}"
: "System instance is not defined for a session with ID {0}", sessionID));
return(false);
}
else
{
return(true);
}
}
else
{
scadaInstance = null;
return(false);
}
}
public bool Login(long sessionID, string username, string encryptedPassword, string scadaInstanceName,
out string errMsg)
{
if (TryGetSession(sessionID, out Session session))
{
session.ClearUser();
ScadaInstance scadaInstance = InstanceManager.GetScadaInstance(scadaInstanceName);
if (scadaInstance == null)
{
errMsg = Localization.UseRussian ?
"Экземпляр системы не найден" :
"System instance not found";
Log.WriteError(string.Format(Localization.UseRussian ?
"Экземпляр системы с наименованием \"{0}\" не найден" :
"System instance named \"{0}\" not found", scadaInstanceName));
}
else
{
string password = CryptoUtils.SafelyDecryptPassword(encryptedPassword, sessionID,
AppData.Settings.SecretKey);
if (scadaInstance.ValidateUser(username, password, out errMsg))
{
Log.WriteAction(string.Format(Localization.UseRussian ?
"Пользователь {0} подключился к {1}" :
"User {0} connected to {1}", username, scadaInstanceName));
session.SetUser(username, scadaInstance);
return(true);
}
else
{
Log.WriteError(string.Format(Localization.UseRussian ?
"Пользователь {0} не прошёл проверку для подключения к {1} - {2}" :
"User {0} failed validation to connect to {1} - {2}",
username, scadaInstanceName, errMsg));
}
}
}
else
{
errMsg = Localization.UseRussian ?
"Сессия не найдена" :
"Session not found";
}
return(false);
}
